Sharp SD-AT50H (serv.man18) Service Manual ▷ View online
– 13 –
SD-AT50H
Figure 13 BLOCK DIAGRAM (3/9)
LED7
LED6
D5
LED8
ES
CN502A
BACK_LIGHT
STRLED
KEY_1
LCDSDA
LCDSCL
LCDCS
LCDRESET
DTSLED
STDLED
POWERKEY
DDLED
DPLLED
VIRLED
TIMERLED
LED9V
Q5
Q6
Q7
+5V(D)
+3.7V(UN-SWD)
GND(U-COM)
H.P SW
L-CH
GND(A)
R-CH
RXIN
+5V(D)
+3.3V(SWD)
GND(D)
N
R-CH
L-CH
H.P SW
25
24
23
22
21
20
19
18
17
15
13
12
11
10
9
8
7
6
5
4
3
2
1
16
14
SW2~SW5
LED DRIVER
LED DRIVER
D DRIVER
SW1
TO DSP SECTION
SD-AT50H
– 14 –
Figure 14 BLOCK DIAGRAM (4/9)
CN501A
JT502
VTR/AUX
TERMINAL
Q528
CN503A
Q502
Q501
JT501
DVD/CD/TV
TERMINAL
IC501
BD3811K1
VOLUME IC
80
79
78
77
77
76
75
74
73
72
71
70
69
68
67
66
65
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
17 16 15 14
1
2
3
4
5
6
7
8
9
10
11
12
13
24 23
18
19
20
21
22
41 42 43 44 45 46 47 48 49 50 51 52
64
63
62
61
60
59
58
57
56
55
54
53
+5V(D)
RIN
LIN
ROUT3
LOUT3
LOUT2
ROUT2
CCB_CE
CCB_DI
AMP_CLK
LOUT1
ROUT1
AMP_SOUT
TUNER_SM
CCB_DO
CCB_CL
FM_STB
AMP_STB
AMP_INT
AMP_SIN
OUTSW
OUTC
OUTSR_
OUTSR_
VOL_CL
VOL_DA
S_MUTE
+12V
CONFIG
AGND
HP_R
HP_L
S_MUTE
PROTECT
CONFIG
VOL_CL
VOL_DA
BS_RCH
BS_LCH
TV_LCH
TV_RCH
DVDA_LCH
DVDA_RCH
TUN_L
TUN_R
VTR_RCH
VTR_LCH
AUX
VTR
TV
DVD
R-CH
L-CH
LC
H
R-CH
R-CH
L-CH
L-CH
R-CH
R-CH
GND(A)
L-CH
GND(U-COM)
+3.7V(UN-SWD)
GND(A)
+9V(A)
GND(D)
+5V(D)
GOUTC
AGND2
VINSW
GOUTSW
AGND1
IN DSPSL
INDSPC
IN DSPSW
OUTSL
OUTSR
VINSL
VINC
OUTSW
OUTC
VINSR
IN2DSP
OUT1(+)
IN DVDSR
VCC
DA
GOUTSR
IN1MIX
OUT2(-)
CL
MUTE
OUT2(+)
INDVD SW
AGND5
AGND6
VEE
AGND4
DGND
OUT1(-)
IN1DSP
INDVDC
IN DVDSL
IN82
AGND8
IN81
IN72
IN71
IN62
OUT2
BBNF1
OUT1
BNF22
BBNF2
IN61
IN52
IN51
BNF12
BNF21
BNF11
IN41
IN42
TNF1
IN32
IN21
GOUT1
AGND9
IN12
IN11
IN11
VIN2
GOUT2
ROUT32
ROUT31
ROUT31
AGND10
ROUT11
ROUT22
ROUT21
ROUT21
ROUT12
GOUTSL
AGND3
AGND7
TNF2
VIN1
IN22
IN DSPSR
IN2MIX
IN31
25
24
23
22
8
7
14
11
12
15
6
10
3
1
5
4
2
13
9
19
16
17
21
18
20
1 2
4
3
5 6
8
7
9
TO DSP SECTION
TO DSP SECTION
– 15 –
SD-AT50H
Figure 15 BLOCK DIAGRAM (5/9)
BI507
IC507
BA05ST
SWITCH
REGULATOR
4
2
CNP505
CNP506
IC513
KIA7809AP
VOLTAGE
REGULATOR
3
1
CNP504
Q516
Q518
Q517
IC505
NJM4565D
OPE AMP.
Q514
Q525
Q527
Q526
0
9
8
7
7
6
5
4
3
2
1
0
9
8
7
6
5
Q504
Q503
1
2
3
4
5 6
7 8
2
5 3 1
OUTSW
OUTC
OUTSR_RCH
OUTSR_LCH
CCB_DO
CCB_CL
CCB_DI
CCB_CE
TUN_R
TUN_L
FMVSM
+5V(D)
OUTC
AGND
OUTSW
AGND
+12V
+12V
+12V
-12V
BS_RCH
BS_LCH
TUN_L
TUN_R
+5V(D)
A_+7V
PROTECT
A_+7V
A_-7V
-12V
TUNER_SM
FM_STB
AMP_SOUT
AMP_STB
AMP_CLK
AMP_SIN
AMP_INT
OUTSR_LCH
OUTSR_RCH
OUTF_RCH
OUTF_LCH
A_-7V
A_-7V
HP_R
HP_L
S_MUTE
GND_D
REG_ON
A.GND
GND
AUX
VTR
R-CH
L-CH
L-CH
R-CH
GND_UCON
GND_A
+
-
+3.7V_(UCON)
D+7.5V
AMP_SIN
AMP_SOUT
GND_D
A+15V
AMP_INT
AMP_STB
AMP_CLK
A-15V
CENTER
SURROUND LCH
SURROUND RCH
FRONT RCH
FRONT LCH
GND
GND
TO POWER
SECTION
SUB WOOFER
VDD
-
+
VSS
+3.7V(UN-SWD)
IN22
-12V(A)
-15V(A)
+7.5V(SWD)
+15V(A)
+12V(A)
CE
DO
FM VSM
GND
L OUT
FM DET
VCC +9V
DI
CL
R OUT
3
1
2
2
4
7
5
1
9
3
1
1
6
8
0
1
8
6
1
1
3
1
9
5
7
2
4
2
1
3
1
0
1
6
8
1
5
3
7
2
4
TO DSP
SECTION
TO POWER
SECTION
TO TUNER
UNIT
VDDA
MPXIN
VSSA
XOUT
SYR
CE
T1
T2
DI
CL
DO
VDDD
XIN
VSSD
24
23 22 21 20
15
13
14
2 3
4
12
8
7
XT01
4.332 MHz
QT01
ICT01
LC72720Y
RDS DECORDER
SD-AT50H
– 16 –
Figure 16 BLOCK DIAGRAM (6/9)
D706
LED805
LED803
LED804
LED806
LED802
LED807
LED809
LED808
CNP901
RL9
BI901
D9
2
1
32
31
30
29
28
27
26
25
16
15
14
13
13
12
11
10
9
XL701
2 MHz
BI802
BI801
CNP801
RL801
RL802
SO801
SPEAKER
TERMINAL
D801
RL803
CNP803
IC813
KIA4558F
PRE AMP.
8
4
IC811
KIA4558F
PRE AMP.
8
4
IC812
KIA4558F
PRE AMP.
8
4
BI803
D710
24 23 22 21 20 19 18 17
1 2 3 4 5 6 7 8
3
1
2
3
5 6
7
3 2
1
5 6
7
3 2
1
5 6
7
PROTECT
A_-15V
RLY_+12V
P
AC_DETECT
AMP_INT
AMP_INT
T
A
+3.7V(UCON)
+15V
A__+15V
DRIVER
-15V
AMP_CLK
AMP_STB
AMP_SOUT
AMP_INT
AMP_SIN
D_+7.5V
-B
+15V
SYS_STOP
AC_DETECT
S_S_MUTE
F_S_MUTE
FAN_LOCK
PROTECT
FAN
C_S_MUTE
RESET
+3.7V(UCON)
+3.3V(USWD)
+B_CHECK
OFFSET
SYS_STOP
W_S_MUTE
AMP_STB
TIMING_CK
-B_CONT
POWER
AMP_SIN
AMP_CLK
AC_DETECT
A/D_RESET
BASS-SW
SP_RLY
AMP_SOUT
A_+12V
A_-12V
SP__RLY
SP_RLY
SP_RLY
SP__RLY
FAN
FAN_LOCK
BASS-SW
PROTECT
OFFSET
A/D_RESET
W_S_MUTE
C_S_MUTE
S_S_MUTE
F_S_MUTE
PROTECT
A_+12V
BASS SW
DRIVER
RESET
IC702
PST9127
RESET
RELAY
DRIVER
RELAY
DRIVER
VOLTAGE
REGULATOR
MOTOR
DRIVER
SWITHING
BUFFER
BUFFER
BUFFER
BUFFER
MUTE
DRIVER
MUTE
DRIVER
MUTE
DRIVER
MUTE
DRIVER
MUTE
DRIVER
M1
FAN MOTOR
Q701
SUBWOOFER
SUBWOOFER
Q705
Q704
Q703
FRONT R-CH
FRONT L-CH
Q829
Q828
Q859
Q818
VDD
-
+ VSS
+
-
Q815
Q816
Q817
Q820
Q814
Q813
+
VDD
-
VSS
+
-
Q819
Q812
Q811
Q827
Q830
M
Q822
Q801
-
-
+
+ VSS
VDD
POINT
RESET
L-CH +
L-CH -
R-CH -
R-CH +
R-CH -
L-CH -
L-CH +
FRONT
SURROND
CENTER
+
+
-
-
CENTER
L-CH
R-CH
L-CH
R-CH
GND
FRONT
SURROND
R-CH -
L-CH -
L-CH +
SURROND
FRONT
L-CH -
R-CH -
L-CH +
R-CH +
CENTER
+
-
GND
R-CH
L-CH
L-CH
CENTER
R-CH
GND
GND
R-CH +
SUB WOOFER
R-CH +
SURROND FRONT
CENTER
SUB WOOFER
Q919
13
11
12
8
1
2
3
4
5
9
7
2
6
5
4
10
3
1
4
3
2
1
1
3
4
5
2
6
8
9
7
4
2
3
1
5
2
6
3
4
8
7
5
1
2
1
3
4
10
9
11
12
6
8
7
5
1
2
3
4
5
6
7
8
9
10
11
12
13
IC701
IX0564AW
SYSTEM
MICROCOMPUTER
+
–
SP6
SUBWOOFER
TO 1-BIT AMP.
SECTION
TO 1-BIT AMP.
SECTION
TO MAIN SECTION
TO 1-BIT AMP.
SECTION
TO 1-BIT AMP.
SECTION
TO MAIN SECTION
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